The Tactical Sport electronic headset helps offer the best of both worlds to shooters: reliable hearing protection from dangerous impulse noise such as gunfire, along with distortion-free amplification of low-level sounds. Folds compactly for transport. The smooth adjustment of the Tactical Sport headset's level-dependent function gives the user pleasant sound reproduction. The audio circuit eliminates abrupt sound cut-off while helping protect hearing by attenuating loud impulse noise. Tactical Sport headset also amplifies the ambient sound up to a limited level to help the user to hear low-level sounds.Adjustable, padded stainless steel headband. Audio input for connection to external components, such as tactical communication radios and cell phones. Recessed microphone and contoured ear cup. Amplifies ambient sound. Tactical hearing protection with an NRR 20dB. Features: Noise Reduction Rating of 20 dB; ASIC chip technology for cleaner, refined audio reproduction; Amplifies ambient sounds so you can actually hear much better; Audio jack for external components such as cell phones, MP3 players, or dog trackers; Auto shut off after two hours to conserve battery life. Color: Black.